lease



(No Model.)

J. & T. W. LEASK.

WRENCH.

No. 580.412. Patented Apr. 13 1897.

witvwma JOHN LEASK AND THOMAS YVM. LEASK, OF GORE BAY, CANADA.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 580,412, dated April13, 1897. Application filed July 8, 1896. Serial No. 598,476. (Nomodel.)

To all whom it may concern:

Be it known that we, JOHN LEAsK and THOMAS WM. LEAsK, subjects of theQueen of Great Britain, residing at Gore Bay, Ontario, Canada, haveinvented certain new and useful Improvements in l/Vrenches; and wedohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to'which it appertains to make and use the same.

Ourinvention relates to a combined nut and pipe wrench.

Our object is to provide a more simple, cheap, and strong wrench whichcan be used either as a nut-wrench or as a pipe-wrench.

A further object is to provide an improved wrench which can be quicklyand easily adjusted, and when so adjusted instantly locked in a superiormanner.

Having these objects in view, our invention consists in combination,with an adj ustmentbar and a jaw, of a sliding jaw and novel mechanismfor locking the sliding jaw on the adjustment-bar.

The invention further consists in combina tion, with an adjustment-barand a jaw connected thereto, of a second jaw slidable on theadjustment-bar, an auxiliary jaw pivoted to the sliding jaw, andmechanism of novel construction for locking the sliding jaw in position.

The invention still further consists of certain other novel features andcombinations appearing more fully hereinafter.

In the accompanying drawings, Figure 1 is a side elevation of ourimproved wrench when adjusted for use as a nut'wrench; Fig. 2, an endview thereof; and Fig. 3, a like view as Fig. l, but showing theauxiliary jaw raised as when the wrench is being used as a pipewrench.

The numeral 1 designates the adjustmentbar, which is extended to form anintegral handle 2, and is provided on its upper end with a downwardly-inclined jaw 3. One edge of the adj ustment-bar is provided with a rack 4,while 5 designates an integral limit pin or stop.

A runner composed of plates 6 and 7 is provided. The numeral 8designates a sliding jaw which has a rack on its inner edge adapted forengagement with the rack 4 of the ad j ustment-bar, and the upper faceof this jaw is inclined so as to be parallel with the inclined face ofthe fixed jaw 23. The sliding jaw is received between plates 6 and 7,and is rigidly connected thereto by fastening devices 9 and 10. Themeans for locking the runner and sliding jaw in position consists of alocking-lever 11, having an end received between rearwardly-projectingportions of the runner and pivoted thereto on the fastening-bolt 12. Thehead of this lever is formed into a curved cam 13, which binds firmly onthe adj ustment-bar when the lever is in the position shown in thedrawings, thereby drawing the sliding jaw toward the adjustment-bar, sothat the teeth of the sliding jaw and bar will engage and the jaw befirmly locked.

Referring now to Fig. 3, the numeral 14 designates our improvedauxiliary jaw which has parallel sides or faces, and is pivotallyconnected to an ear 15, formed integral with the sliding jaw, by meansof a pin or screw 16. This auxiliary jaw is provided with a tapering lug17, which is adapted to wedge itself into a tapering pocket 18 in thesliding jaw when the said auxiliary jaw is in the position shown inFig. 1. The free end of the auxiliary jaw is arc-shaped and providedwith gripping-teeth 19.

. The numeral 20 designates a section of pipe which is shown in thedrawings to disclose the manner in which the auxiliary jaw operates whenthe device is used as a pipe-wrench.

Ordinarily the auxiliary jaw is down against the sliding jaw, and thelug is firmly wedged in the pocket in the latter. The device is thenadapted for use as a nut-wrench. \Vhen, however, it is desirableto usethe wrench in connection with pipes, the sliding jaw is adjusted, andwhen the wrench is applied to the pipe and turned the auxiliary jaw islifted and its teeth are wedged firmly against the pipe.

It is obvious that slight and immaterial changes might be resorted to byone skilled in the art to which our invention appertains withoutdeparting from its spirit and scope, and hence we consider ourselvesentitled to all such variations as properly come within the spirit andscope of the invention.

Having thus described our invention,what we claim as new, and desire tosecure by Letters Patent, is

1. In a combined nut and pipe wrench, the combination with an adjustmentbar provided with a jaw, of a second jaw slidable on the adjustment-barand provided with a tapering pocket, an auxiliary jaw pivotallyconnected to the sliding jaw, being provided with teeth and having atapering lug normally adapted to enter the pocket of the sliding jaw,said auxiliary jaw normally resting against the sliding jaw, and meansfor locking the Y sliding jaw in position.

2. In a combined nut and pipe wrench, the combination with an adjustmentbar pro-

